Merge tag 'v2.14.1'
[git/raj.git] / hex.c
blob28b44118cbf2c75b26d017a34ecfdf65dbf4c7eb
1 #include "cache.h"
3 const signed char hexval_table[256] = {
4 -1, -1, -1, -1, -1, -1, -1, -1, /* 00-07 */
5 -1, -1, -1, -1, -1, -1, -1, -1, /* 08-0f */
6 -1, -1, -1, -1, -1, -1, -1, -1, /* 10-17 */
7 -1, -1, -1, -1, -1, -1, -1, -1, /* 18-1f */
8 -1, -1, -1, -1, -1, -1, -1, -1, /* 20-27 */
9 -1, -1, -1, -1, -1, -1, -1, -1, /* 28-2f */
10 0, 1, 2, 3, 4, 5, 6, 7, /* 30-37 */
11 8, 9, -1, -1, -1, -1, -1, -1, /* 38-3f */
12 -1, 10, 11, 12, 13, 14, 15, -1, /* 40-47 */
13 -1, -1, -1, -1, -1, -1, -1, -1, /* 48-4f */
14 -1, -1, -1, -1, -1, -1, -1, -1, /* 50-57 */
15 -1, -1, -1, -1, -1, -1, -1, -1, /* 58-5f */
16 -1, 10, 11, 12, 13, 14, 15, -1, /* 60-67 */
17 -1, -1, -1, -1, -1, -1, -1, -1, /* 68-67 */
18 -1, -1, -1, -1, -1, -1, -1, -1, /* 70-77 */
19 -1, -1, -1, -1, -1, -1, -1, -1, /* 78-7f */
20 -1, -1, -1, -1, -1, -1, -1, -1, /* 80-87 */
21 -1, -1, -1, -1, -1, -1, -1, -1, /* 88-8f */
22 -1, -1, -1, -1, -1, -1, -1, -1, /* 90-97 */
23 -1, -1, -1, -1, -1, -1, -1, -1, /* 98-9f */
24 -1, -1, -1, -1, -1, -1, -1, -1, /* a0-a7 */
25 -1, -1, -1, -1, -1, -1, -1, -1, /* a8-af */
26 -1, -1, -1, -1, -1, -1, -1, -1, /* b0-b7 */
27 -1, -1, -1, -1, -1, -1, -1, -1, /* b8-bf */
28 -1, -1, -1, -1, -1, -1, -1, -1, /* c0-c7 */
29 -1, -1, -1, -1, -1, -1, -1, -1, /* c8-cf */
30 -1, -1, -1, -1, -1, -1, -1, -1, /* d0-d7 */
31 -1, -1, -1, -1, -1, -1, -1, -1, /* d8-df */
32 -1, -1, -1, -1, -1, -1, -1, -1, /* e0-e7 */
33 -1, -1, -1, -1, -1, -1, -1, -1, /* e8-ef */
34 -1, -1, -1, -1, -1, -1, -1, -1, /* f0-f7 */
35 -1, -1, -1, -1, -1, -1, -1, -1, /* f8-ff */
38 int get_sha1_hex(const char *hex, unsigned char *sha1)
40 int i;
41 for (i = 0; i < GIT_SHA1_RAWSZ; i++) {
42 int val = hex2chr(hex);
43 if (val < 0)
44 return -1;
45 *sha1++ = val;
46 hex += 2;
48 return 0;
51 int get_oid_hex(const char *hex, struct object_id *oid)
53 return get_sha1_hex(hex, oid->hash);
56 int parse_oid_hex(const char *hex, struct object_id *oid, const char **end)
58 int ret = get_oid_hex(hex, oid);
59 if (!ret)
60 *end = hex + GIT_SHA1_HEXSZ;
61 return ret;
64 char *sha1_to_hex_r(char *buffer, const unsigned char *sha1)
66 static const char hex[] = "0123456789abcdef";
67 char *buf = buffer;
68 int i;
70 for (i = 0; i < GIT_SHA1_RAWSZ; i++) {
71 unsigned int val = *sha1++;
72 *buf++ = hex[val >> 4];
73 *buf++ = hex[val & 0xf];
75 *buf = '\0';
77 return buffer;
80 char *oid_to_hex_r(char *buffer, const struct object_id *oid)
82 return sha1_to_hex_r(buffer, oid->hash);
85 char *sha1_to_hex(const unsigned char *sha1)
87 static int bufno;
88 static char hexbuffer[4][GIT_MAX_HEXSZ + 1];
89 bufno = (bufno + 1) % ARRAY_SIZE(hexbuffer);
90 return sha1_to_hex_r(hexbuffer[bufno], sha1);
93 char *oid_to_hex(const struct object_id *oid)
95 return sha1_to_hex(oid->hash);